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Despite the fundamental importance of measurement in medicine, studies which compare methods of clinical measurement are often analysed inappropriately and may thus come to incorrect conclusions. We explain the problems with the main methods used, notably correlation and regression, and describe the limits of agreement approach which we have proposed. We consider why incorrect methods are so widely used and describe our own experience in bringing this issue to the attention of medical researchers.

Original publication

DOI

10.1093/ije/24.supplement_1.s7

Type

Journal article

Journal

Int j epidemiol

Publication Date

1995

Volume

24 Suppl 1

Pages

S7 - 14

Keywords

Clinical Medicine, Data Interpretation, Statistical, Epidemiologic Methods, Humans, Peak Expiratory Flow Rate, Reproducibility of Results, Respiratory Function Tests